Service difficulty report · Outflow Valve · Doug MD88

Difficulty date
May 15, 2019
Submitted
May 17, 2019
Operation
Air carrier
Aircraft
N907DL
Make and model
Doug MD88
Aircraft serial
49538
Aircraft time
82,676 hours, 63,549 cycles
Part
Outflow Valve
Condition
Obstructed
Location
Cabin Pressure
Stage of operation
DE
How discovered
O
Nature of condition
O
Precautionary procedure
B, G

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

SHIP 907 - PRESSURIZATION - DECLARED EMERGENCY INTO MIA DUE TO LOSS OF AUTO PRESSURIZATION. MASKS DEPLOYED. CORRECTIVE ACTION: MTC. FERRY TO ATL - ATL MAINTENANCE FOUND SCREW BLOCKING FULL ROTATION OF OUTFLOW VALVE WHEEL IN CENTER PEDESTAL. THE SCREW WAS REMOVED AND A SUCCESSFUL PRESSURIZATION TEST WAS ACCOMPLISHED. THE SHIP'S SET OF OXYGEN GENERATORS WHERE REPLACED AND DOCUMENTED ON LOG SHEET 5844498. (LP5844492)

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